| middle palmar space | The more medial of the central palmar spaces, bounded medially by the hypothenar compartment; related distally to the synovial tendon sheaths of digits 3 and 4 and proximally to the common flexor sheath. Synonym: medial midpalmar space, middle palmar space. (05 Mar 2000) |
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| common palmar digital artery | <anatomy, artery> One of three arteries arising from the superficial palmar arch and running to the interdigital clefts where each divides into two proper palmar digital arteries. Synonym: arteria digitalis palmaris communis. (05 Mar 2000) |
| common palmar digital nerves | Four nerves in the palm that send branches (proper palmar digital nerves) to adjacent sides of two digits; three are branches of the median, one is from the ulnar. Synonym: nervi digitales palmares communes. (05 Mar 2000) |
| proper palmar digital artery | <anatomy, artery> Terminal branches of the common palmar digital artery that pass to the side of each finger. Synonym: arteria digitalis palmaris propria, collateral digital artery, digital collateral artery. (05 Mar 2000) |
| proper palmar digital nerves | The palmar nerves of the digits of the hand derived from common palmar digital nerves; each nerve supplies a palmar quadrant of a digit and a part of the dorsal surface of the distal phalanx. Synonym: nervi digitales palmares proprii. (05 Mar 2000) |
| short palmar muscle | <anatomy, muscle> Origin, ulnar side of central portion of the palmar aponeurosis; insertion, skin of ulnar side of hand; action, wrinkles skin on medial side of palm; nerve supply, ulnar. Synonym: musculus palmaris brevis, short palmar muscle. (05 Mar 2000) |
| superficial palmar (arterial) arch | The arterial arch in the hand located superficial to the long flexor tendons approximately at the level of a line extrapolated across the palm from the distal side of the outstretched thumb. It is formed principally by the termination of the superficial ulnar artery and is usually completed by a communication with the superficial palmar branch of the radial artery. The arch gives rise to the common palmar digital arteries. Synonym: arcus palmaris superficialis, arcus volaris superficialis. (05 Mar 2000) |
| superficial palmar artery | <anatomy, artery> The superficial palmar branch of the radial artery which supplies the thenar muscles then enters the palm to communicate with the superficial palmar arch from the ulnar artery. Synonym: ramus palmaris superficialis arteriae radialis, superficial palmar artery, superficial volar artery, superficialis volae. (05 Mar 2000) |
| superficial palmar branch of radial artery | <anatomy, artery> The superficial palmar branch of the radial artery which supplies the thenar muscles then enters the palm to communicate with the superficial palmar arch from the ulnar artery. Synonym: ramus palmaris superficialis arteriae radialis, superficial palmar artery, superficial volar artery, superficialis volae. (05 Mar 2000) |
| superficial palmar venous arch | The venous arch accompanying the superficial palmar arterial arch it consists usually of paired venae comitantes and is drained by the superficial ulnar and radial veins. Synonym: arcus venosus palmaris superficialis. (05 Mar 2000) |
| deep palmar (arterial) arch | The arterial arch located deep to the long flexor tendons in the hand. It is formed by the terminal part of the radial artery in conjunction with the deep palmar branch of the ulnar artery. The arch gives rise to palmar metacarpal and princeps pollicis arteries. Synonym: arcus palmaris profundus, arcus volaris profundus. (05 Mar 2000) |
| deep palmar branch of ulnar artery | <anatomy, artery> Branch of the ulnar artery which supplies the hypothenar muscles then passes deep into the palm to the flexor tendons and anastomoses with the deep palmar arch from the radial artery. Synonym: ramus palmaris profundus arteriae ulnaris. (05 Mar 2000) |
| deep palmar venous arch | The venous arch that accompanies the deep palmar arterial arch it usually consists of paired venae comitantes. Synonym: arcus venosus palmaris profundus. (05 Mar 2000) |
| lateral central palmar space | The more lateral (radial) of the central palmar spaces, bounded laterally by the thenar compartment; related distally to the synovial tendon sheath of the index finger and proximally to the common flexor sheath. Synonym: lateral midpalmar space. (05 Mar 2000) |
| long palmar muscle | <anatomy, muscle> Origin, medial epicondyle of humerus; insertion, flexor retinaculum of wrist and palmar fascia; action, makes palmar fascia tense and flexes the hand and forearm; is absent about 20% of the time; when tensed, its tendon stands out sharply at the wrist and overlies the median nerve; nerve supply, median. Synonym: musculus palmaris longus, long palmar muscle. (05 Mar 2000) |